compiler-rt/test/builtins/Unit/ctzsi2_test.c

   1 // RUN: %clang_builtins %s %librt -o %t && %run %t
   2 // REQUIRES: librt_has_ctzsi2
   3
   4 #include "int_lib.h"
   5 #include <stdio.h>
   6
   7 // Returns: the number of trailing 0-bits
   8
   9 // Precondition: a != 0
  10
  11 COMPILER_RT_ABI int __ctzsi2(si_int a);
  12
  13 int test__ctzsi2(si_int a, int expected)
  14 {
  15     int x = __ctzsi2(a);
  16     if (x != expected)
  17         printf("error in __ctzsi2(0x%X) = %d, expected %d\n", a, x, expected);
  18     return x != expected;
  19 }
  20
  21 char assumption_1[sizeof(di_int) == 2*sizeof(si_int)] = {0};
  22 char assumption_2[sizeof(si_int)*CHAR_BIT == 32] = {0};
  23
  24 int main()
  25 {
  26 //     if (test__ctzsi2(0x00000000, 32))  // undefined
  27 //         return 1;
  28     if (test__ctzsi2(0x00000001, 0))
  29         return 1;
  30     if (test__ctzsi2(0x00000002, 1))
  31         return 1;
  32     if (test__ctzsi2(0x00000003, 0))
  33         return 1;
  34     if (test__ctzsi2(0x00000004, 2))
  35         return 1;
  36     if (test__ctzsi2(0x00000005, 0))
  37         return 1;
  38     if (test__ctzsi2(0x00000006, 1))
  39         return 1;
  40     if (test__ctzsi2(0x00000007, 0))
  41         return 1;
  42     if (test__ctzsi2(0x00000008, 3))
  43         return 1;
  44     if (test__ctzsi2(0x00000009, 0))
  45         return 1;
  46     if (test__ctzsi2(0x0000000A, 1))
  47         return 1;
  48     if (test__ctzsi2(0x0000000B, 0))
  49         return 1;
  50     if (test__ctzsi2(0x0000000C, 2))
  51         return 1;
  52     if (test__ctzsi2(0x0000000D, 0))
  53         return 1;
  54     if (test__ctzsi2(0x0000000E, 1))
  55         return 1;
  56     if (test__ctzsi2(0x0000000F, 0))
  57         return 1;
  58     if (test__ctzsi2(0x00000010, 4))
  59         return 1;
  60     if (test__ctzsi2(0x00000012, 1))
  61         return 1;
  62     if (test__ctzsi2(0x00000013, 0))
  63         return 1;
  64     if (test__ctzsi2(0x00000014, 2))
  65         return 1;
  66     if (test__ctzsi2(0x00000015, 0))
  67         return 1;
  68     if (test__ctzsi2(0x00000016, 1))
  69         return 1;
  70     if (test__ctzsi2(0x00000017, 0))
  71         return 1;
  72     if (test__ctzsi2(0x00000018, 3))
  73         return 1;
  74     if (test__ctzsi2(0x00000019, 0))
  75         return 1;
  76     if (test__ctzsi2(0x0000001A, 1))
  77         return 1;
  78     if (test__ctzsi2(0x0000001B, 0))
  79         return 1;
  80     if (test__ctzsi2(0x0000001C, 2))
  81         return 1;
  82     if (test__ctzsi2(0x0000001D, 0))
  83         return 1;
  84     if (test__ctzsi2(0x0000001E, 1))
  85         return 1;
  86     if (test__ctzsi2(0x0000001F, 0))
  87         return 1;
  88     if (test__ctzsi2(0x00000020, 5))
  89         return 1;
  90     if (test__ctzsi2(0x00000022, 1))
  91         return 1;
  92     if (test__ctzsi2(0x00000023, 0))
  93         return 1;
  94     if (test__ctzsi2(0x00000024, 2))
  95         return 1;
  96     if (test__ctzsi2(0x00000025, 0))
  97         return 1;
  98     if (test__ctzsi2(0x00000026, 1))
  99         return 1;
 100     if (test__ctzsi2(0x00000027, 0))
 101         return 1;
 102     if (test__ctzsi2(0x00000028, 3))
 103         return 1;
 104     if (test__ctzsi2(0x00000029, 0))
 105         return 1;
 106     if (test__ctzsi2(0x0000002A, 1))
 107         return 1;
 108     if (test__ctzsi2(0x0000002B, 0))
 109         return 1;
 110     if (test__ctzsi2(0x0000002C, 2))
 111         return 1;
 112     if (test__ctzsi2(0x0000002D, 0))
 113         return 1;
 114     if (test__ctzsi2(0x0000002E, 1))
 115         return 1;
 116     if (test__ctzsi2(0x0000002F, 0))
 117         return 1;
 118     if (test__ctzsi2(0x00000030, 4))
 119         return 1;
 120     if (test__ctzsi2(0x00000032, 1))
 121         return 1;
 122     if (test__ctzsi2(0x00000033, 0))
 123         return 1;
 124     if (test__ctzsi2(0x00000034, 2))
 125         return 1;
 126     if (test__ctzsi2(0x00000035, 0))
 127         return 1;
 128     if (test__ctzsi2(0x00000036, 1))
 129         return 1;
 130     if (test__ctzsi2(0x00000037, 0))
 131         return 1;
 132     if (test__ctzsi2(0x00000038, 3))
 133         return 1;
 134     if (test__ctzsi2(0x00000039, 0))
 135         return 1;
 136     if (test__ctzsi2(0x0000003A, 1))
 137         return 1;
 138     if (test__ctzsi2(0x0000003B, 0))
 139         return 1;
 140     if (test__ctzsi2(0x0000003C, 2))
 141         return 1;
 142     if (test__ctzsi2(0x0000003D, 0))
 143         return 1;
 144     if (test__ctzsi2(0x0000003E, 1))
 145         return 1;
 146     if (test__ctzsi2(0x0000003F, 0))
 147         return 1;
 148     if (test__ctzsi2(0x00000040, 6))
 149         return 1;
 150     if (test__ctzsi2(0x00000042, 1))
 151         return 1;
 152     if (test__ctzsi2(0x00000043, 0))
 153         return 1;
 154     if (test__ctzsi2(0x00000044, 2))
 155         return 1;
 156     if (test__ctzsi2(0x00000045, 0))
 157         return 1;
 158     if (test__ctzsi2(0x00000046, 1))
 159         return 1;
 160     if (test__ctzsi2(0x00000047, 0))
 161         return 1;
 162     if (test__ctzsi2(0x00000048, 3))
 163         return 1;
 164     if (test__ctzsi2(0x00000049, 0))
 165         return 1;
 166     if (test__ctzsi2(0x0000004A, 1))
 167         return 1;
 168     if (test__ctzsi2(0x0000004B, 0))
 169         return 1;
 170     if (test__ctzsi2(0x0000004C, 2))
 171         return 1;
 172     if (test__ctzsi2(0x0000004D, 0))
 173         return 1;
 174     if (test__ctzsi2(0x0000004E, 1))
 175         return 1;
 176     if (test__ctzsi2(0x0000004F, 0))
 177         return 1;
 178     if (test__ctzsi2(0x00000050, 4))
 179         return 1;
 180     if (test__ctzsi2(0x00000052, 1))
 181         return 1;
 182     if (test__ctzsi2(0x00000053, 0))
 183         return 1;
 184     if (test__ctzsi2(0x00000054, 2))
 185         return 1;
 186     if (test__ctzsi2(0x00000055, 0))
 187         return 1;
 188     if (test__ctzsi2(0x00000056, 1))
 189         return 1;
 190     if (test__ctzsi2(0x00000057, 0))
 191         return 1;
 192     if (test__ctzsi2(0x00000058, 3))
 193         return 1;
 194     if (test__ctzsi2(0x00000059, 0))
 195         return 1;
 196     if (test__ctzsi2(0x0000005A, 1))
 197         return 1;
 198     if (test__ctzsi2(0x0000005B, 0))
 199         return 1;
 200     if (test__ctzsi2(0x0000005C, 2))
 201         return 1;
 202     if (test__ctzsi2(0x0000005D, 0))
 203         return 1;
 204     if (test__ctzsi2(0x0000005E, 1))
 205         return 1;
 206     if (test__ctzsi2(0x0000005F, 0))
 207         return 1;
 208     if (test__ctzsi2(0x00000060, 5))
 209         return 1;
 210     if (test__ctzsi2(0x00000062, 1))
 211         return 1;
 212     if (test__ctzsi2(0x00000063, 0))
 213         return 1;
 214     if (test__ctzsi2(0x00000064, 2))
 215         return 1;
 216     if (test__ctzsi2(0x00000065, 0))
 217         return 1;
 218     if (test__ctzsi2(0x00000066, 1))
 219         return 1;
 220     if (test__ctzsi2(0x00000067, 0))
 221         return 1;
 222     if (test__ctzsi2(0x00000068, 3))
 223         return 1;
 224     if (test__ctzsi2(0x00000069, 0))
 225         return 1;
 226     if (test__ctzsi2(0x0000006A, 1))
 227         return 1;
 228     if (test__ctzsi2(0x0000006B, 0))
 229         return 1;
 230     if (test__ctzsi2(0x0000006C, 2))
 231         return 1;
 232     if (test__ctzsi2(0x0000006D, 0))
 233         return 1;
 234     if (test__ctzsi2(0x0000006E, 1))
 235         return 1;
 236     if (test__ctzsi2(0x0000006F, 0))
 237         return 1;
 238     if (test__ctzsi2(0x00000070, 4))
 239         return 1;
 240     if (test__ctzsi2(0x00000072, 1))
 241         return 1;
 242     if (test__ctzsi2(0x00000073, 0))
 243         return 1;
 244     if (test__ctzsi2(0x00000074, 2))
 245         return 1;
 246     if (test__ctzsi2(0x00000075, 0))
 247         return 1;
 248     if (test__ctzsi2(0x00000076, 1))
 249         return 1;
 250     if (test__ctzsi2(0x00000077, 0))
 251         return 1;
 252     if (test__ctzsi2(0x00000078, 3))
 253         return 1;
 254     if (test__ctzsi2(0x00000079, 0))
 255         return 1;
 256     if (test__ctzsi2(0x0000007A, 1))
 257         return 1;
 258     if (test__ctzsi2(0x0000007B, 0))
 259         return 1;
 260     if (test__ctzsi2(0x0000007C, 2))
 261         return 1;
 262     if (test__ctzsi2(0x0000007D, 0))
 263         return 1;
 264     if (test__ctzsi2(0x0000007E, 1))
 265         return 1;
 266     if (test__ctzsi2(0x0000007F, 0))
 267         return 1;
 268     if (test__ctzsi2(0x00000080, 7))
 269         return 1;
 270     if (test__ctzsi2(0x00000082, 1))
 271         return 1;
 272     if (test__ctzsi2(0x00000083, 0))
 273         return 1;
 274     if (test__ctzsi2(0x00000084, 2))
 275         return 1;
 276     if (test__ctzsi2(0x00000085, 0))
 277         return 1;
 278     if (test__ctzsi2(0x00000086, 1))
 279         return 1;
 280     if (test__ctzsi2(0x00000087, 0))
 281         return 1;
 282     if (test__ctzsi2(0x00000088, 3))
 283         return 1;
 284     if (test__ctzsi2(0x00000089, 0))
 285         return 1;
 286     if (test__ctzsi2(0x0000008A, 1))
 287         return 1;
 288     if (test__ctzsi2(0x0000008B, 0))
 289         return 1;
 290     if (test__ctzsi2(0x0000008C, 2))
 291         return 1;
 292     if (test__ctzsi2(0x0000008D, 0))
 293         return 1;
 294     if (test__ctzsi2(0x0000008E, 1))
 295         return 1;
 296     if (test__ctzsi2(0x0000008F, 0))
 297         return 1;
 298     if (test__ctzsi2(0x00000090, 4))
 299         return 1;
 300     if (test__ctzsi2(0x00000092, 1))
 301         return 1;
 302     if (test__ctzsi2(0x00000093, 0))
 303         return 1;
 304     if (test__ctzsi2(0x00000094, 2))
 305         return 1;
 306     if (test__ctzsi2(0x00000095, 0))
 307         return 1;
 308     if (test__ctzsi2(0x00000096, 1))
 309         return 1;
 310     if (test__ctzsi2(0x00000097, 0))
 311         return 1;
 312     if (test__ctzsi2(0x00000098, 3))
 313         return 1;
 314     if (test__ctzsi2(0x00000099, 0))
 315         return 1;
 316     if (test__ctzsi2(0x0000009A, 1))
 317         return 1;
 318     if (test__ctzsi2(0x0000009B, 0))
 319         return 1;
 320     if (test__ctzsi2(0x0000009C, 2))
 321         return 1;
 322     if (test__ctzsi2(0x0000009D, 0))
 323         return 1;
 324     if (test__ctzsi2(0x0000009E, 1))
 325         return 1;
 326     if (test__ctzsi2(0x0000009F, 0))
 327         return 1;
 328     if (test__ctzsi2(0x000000A0, 5))
 329         return 1;
 330     if (test__ctzsi2(0x000000A2, 1))
 331         return 1;
 332     if (test__ctzsi2(0x000000A3, 0))
 333         return 1;
 334     if (test__ctzsi2(0x000000A4, 2))
 335         return 1;
 336     if (test__ctzsi2(0x000000A5, 0))
 337         return 1;
 338     if (test__ctzsi2(0x000000A6, 1))
 339         return 1;
 340     if (test__ctzsi2(0x000000A7, 0))
 341         return 1;
 342     if (test__ctzsi2(0x000000A8, 3))
 343         return 1;
 344     if (test__ctzsi2(0x000000A9, 0))
 345         return 1;
 346     if (test__ctzsi2(0x000000AA, 1))
 347         return 1;
 348     if (test__ctzsi2(0x000000AB, 0))
 349         return 1;
 350     if (test__ctzsi2(0x000000AC, 2))
 351         return 1;
 352     if (test__ctzsi2(0x000000AD, 0))
 353         return 1;
 354     if (test__ctzsi2(0x000000AE, 1))
 355         return 1;
 356     if (test__ctzsi2(0x000000AF, 0))
 357         return 1;
 358     if (test__ctzsi2(0x000000B0, 4))
 359         return 1;
 360     if (test__ctzsi2(0x000000B2, 1))
 361         return 1;
 362     if (test__ctzsi2(0x000000B3, 0))
 363         return 1;
 364     if (test__ctzsi2(0x000000B4, 2))
 365         return 1;
 366     if (test__ctzsi2(0x000000B5, 0))
 367         return 1;
 368     if (test__ctzsi2(0x000000B6, 1))
 369         return 1;
 370     if (test__ctzsi2(0x000000B7, 0))
 371         return 1;
 372     if (test__ctzsi2(0x000000B8, 3))
 373         return 1;
 374     if (test__ctzsi2(0x000000B9, 0))
 375         return 1;
 376     if (test__ctzsi2(0x000000BA, 1))
 377         return 1;
 378     if (test__ctzsi2(0x000000BB, 0))
 379         return 1;
 380     if (test__ctzsi2(0x000000BC, 2))
 381         return 1;
 382     if (test__ctzsi2(0x000000BD, 0))
 383         return 1;
 384     if (test__ctzsi2(0x000000BE, 1))
 385         return 1;
 386     if (test__ctzsi2(0x000000BF, 0))
 387         return 1;
 388     if (test__ctzsi2(0x000000C0, 6))
 389         return 1;
 390     if (test__ctzsi2(0x000000C2, 1))
 391         return 1;
 392     if (test__ctzsi2(0x000000C3, 0))
 393         return 1;
 394     if (test__ctzsi2(0x000000C4, 2))
 395         return 1;
 396     if (test__ctzsi2(0x000000C5, 0))
 397         return 1;
 398     if (test__ctzsi2(0x000000C6, 1))
 399         return 1;
 400     if (test__ctzsi2(0x000000C7, 0))
 401         return 1;
 402     if (test__ctzsi2(0x000000C8, 3))
 403         return 1;
 404     if (test__ctzsi2(0x000000C9, 0))
 405         return 1;
 406     if (test__ctzsi2(0x000000CA, 1))
 407         return 1;
 408     if (test__ctzsi2(0x000000CB, 0))
 409         return 1;
 410     if (test__ctzsi2(0x000000CC, 2))
 411         return 1;
 412     if (test__ctzsi2(0x000000CD, 0))
 413         return 1;
 414     if (test__ctzsi2(0x000000CE, 1))
 415         return 1;
 416     if (test__ctzsi2(0x000000CF, 0))
 417         return 1;
 418     if (test__ctzsi2(0x000000D0, 4))
 419         return 1;
 420     if (test__ctzsi2(0x000000D2, 1))
 421         return 1;
 422     if (test__ctzsi2(0x000000D3, 0))
 423         return 1;
 424     if (test__ctzsi2(0x000000D4, 2))
 425         return 1;
 426     if (test__ctzsi2(0x000000D5, 0))
 427         return 1;
 428     if (test__ctzsi2(0x000000D6, 1))
 429         return 1;
 430     if (test__ctzsi2(0x000000D7, 0))
 431         return 1;
 432     if (test__ctzsi2(0x000000D8, 3))
 433         return 1;
 434     if (test__ctzsi2(0x000000D9, 0))
 435         return 1;
 436     if (test__ctzsi2(0x000000DA, 1))
 437         return 1;
 438     if (test__ctzsi2(0x000000DB, 0))
 439         return 1;
 440     if (test__ctzsi2(0x000000DC, 2))
 441         return 1;
 442     if (test__ctzsi2(0x000000DD, 0))
 443         return 1;
 444     if (test__ctzsi2(0x000000DE, 1))
 445         return 1;
 446     if (test__ctzsi2(0x000000DF, 0))
 447         return 1;
 448     if (test__ctzsi2(0x000000E0, 5))
 449         return 1;
 450     if (test__ctzsi2(0x000000E2, 1))
 451         return 1;
 452     if (test__ctzsi2(0x000000E3, 0))
 453         return 1;
 454     if (test__ctzsi2(0x000000E4, 2))
 455         return 1;
 456     if (test__ctzsi2(0x000000E5, 0))
 457         return 1;
 458     if (test__ctzsi2(0x000000E6, 1))
 459         return 1;
 460     if (test__ctzsi2(0x000000E7, 0))
 461         return 1;
 462     if (test__ctzsi2(0x000000E8, 3))
 463         return 1;
 464     if (test__ctzsi2(0x000000E9, 0))
 465         return 1;
 466     if (test__ctzsi2(0x000000EA, 1))
 467         return 1;
 468     if (test__ctzsi2(0x000000EB, 0))
 469         return 1;
 470     if (test__ctzsi2(0x000000EC, 2))
 471         return 1;
 472     if (test__ctzsi2(0x000000ED, 0))
 473         return 1;
 474     if (test__ctzsi2(0x000000EE, 1))
 475         return 1;
 476     if (test__ctzsi2(0x000000EF, 0))
 477         return 1;
 478     if (test__ctzsi2(0x000000F0, 4))
 479         return 1;
 480     if (test__ctzsi2(0x000000F2, 1))
 481         return 1;
 482     if (test__ctzsi2(0x000000F3, 0))
 483         return 1;
 484     if (test__ctzsi2(0x000000F4, 2))
 485         return 1;
 486     if (test__ctzsi2(0x000000F5, 0))
 487         return 1;
 488     if (test__ctzsi2(0x000000F6, 1))
 489         return 1;
 490     if (test__ctzsi2(0x000000F7, 0))
 491         return 1;
 492     if (test__ctzsi2(0x000000F8, 3))
 493         return 1;
 494     if (test__ctzsi2(0x000000F9, 0))
 495         return 1;
 496     if (test__ctzsi2(0x000000FA, 1))
 497         return 1;
 498     if (test__ctzsi2(0x000000FB, 0))
 499         return 1;
 500     if (test__ctzsi2(0x000000FC, 2))
 501         return 1;
 502     if (test__ctzsi2(0x000000FD, 0))
 503         return 1;
 504     if (test__ctzsi2(0x000000FE, 1))
 505         return 1;
 506     if (test__ctzsi2(0x000000FF, 0))
 507         return 1;
 508
 509     if (test__ctzsi2(0x00000100, 8))
 510         return 1;
 511     if (test__ctzsi2(0x00000200, 9))
 512         return 1;
 513     if (test__ctzsi2(0x00000400, 10))
 514         return 1;
 515     if (test__ctzsi2(0x00000800, 11))
 516         return 1;
 517     if (test__ctzsi2(0x00001000, 12))
 518         return 1;
 519     if (test__ctzsi2(0x00002000, 13))
 520         return 1;
 521     if (test__ctzsi2(0x00004000, 14))
 522         return 1;
 523     if (test__ctzsi2(0x00008000, 15))
 524         return 1;
 525     if (test__ctzsi2(0x00010000, 16))
 526         return 1;
 527     if (test__ctzsi2(0x00020000, 17))
 528         return 1;
 529     if (test__ctzsi2(0x00040000, 18))
 530         return 1;
 531     if (test__ctzsi2(0x00080000, 19))
 532         return 1;
 533     if (test__ctzsi2(0x00100000, 20))
 534         return 1;
 535     if (test__ctzsi2(0x00200000, 21))
 536         return 1;
 537     if (test__ctzsi2(0x00400000, 22))
 538         return 1;
 539     if (test__ctzsi2(0x00800000, 23))
 540         return 1;
 541     if (test__ctzsi2(0x01000000, 24))
 542         return 1;
 543     if (test__ctzsi2(0x02000000, 25))
 544         return 1;
 545     if (test__ctzsi2(0x04000000, 26))
 546         return 1;
 547     if (test__ctzsi2(0x08000000, 27))
 548         return 1;
 549     if (test__ctzsi2(0x10000000, 28))
 550         return 1;
 551     if (test__ctzsi2(0x20000000, 29))
 552         return 1;
 553     if (test__ctzsi2(0x40000000, 30))
 554         return 1;
 555     if (test__ctzsi2(0x80000000, 31))
 556         return 1;
 557
 558    return 0;
 559 }